Plug-in photocell with cord is for use with all Plus and Professional Series Transformers.

3-wires: line, neutral and load.

Plugs directly into transformer.

Offered with 1 foot and 10 foot cords. The 1 foot cord version is meant to be installed directly on the side of the transformer. The 10-foot version is meant to be installed somewhere else, and is useful in cases where the transformer is not exposed to sunlight.